公开(公告)号：US11557992B2

公开(公告)日：2023-01-17

申请号：US17321020

申请日：2021-05-14

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Raquib Buksh ,  Kevin M. Gertiser ,  Ihab Nahlus ,  Tushar Nachnani ,  Ronald M. Shearer ,  Mitchell Cohen ,  Spandana V. Barre

IPC: H02P6/18 ,  H02P21/32 ,  H02P6/185

Abstract: A method for phase-voltage based motor period measurement includes generating a commanded phase voltage and applying the commanded phase voltage to a first phase voltage input of an electric motor, a second phase voltage input of the electric motor, and a third phase voltage input of the electric motor, measuring a first period of a phase voltage associated with the first phase voltage input and the second phase voltage input and comparing the measured first period to a frequency of the commanded phase voltage, and, in response to a determination that the measured first period of the phase voltage associated with the first phase voltage input and the second phase voltage input is outside of a range of the frequency associated with the commanded phase voltage, identifying a fault associated with the first integrated circuit or signal path.

公开(公告)号：US11837984B2

公开(公告)日：2023-12-05

申请号：US17320752

申请日：2021-05-14

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Mark W. Gose ,  Mitchell Cohen ,  Tushar Nachnani ,  Christopher Klaus

IPC: H02P29/024 ,  H02P27/06 ,  B60L53/20 ,  B60L3/00 ,  B60L15/00

CPC classification number: H02P29/024 ,  B60L3/003 ,  B60L15/007 ,  B60L53/20 ,  H02P27/06

Abstract: A system for an inverter includes a first integrated circuit configured to: provide power to a first set of switches, and selectively control the first set of switches and a second set of switches; a second integrated circuit configured to provide power to the second set of switches; and an electric motor being connected to the first set of switches and the second set of switches, wherein, the second integrated circuit is further configured to: in response to an a fault detected in the first integrated circuit, selectively control the first set of switches and the second set of switches, and, in response to at least one voltage value corresponding to a voltage of the first set of switches being outside of a threshold, performing a safe state operation.